Explosion-proof valve, top cover assembly, and battery

Abstract

An explosion-proof valve, a top cover assembly and a battery are disclosed. The explosion-proof valve includes a mounting part and a body part, the mounting part is arranged on a peripheral edge of the body part, the body part includes a weak part and a first buffer part, and the weak part is arranged between the mounting part and the first buffer part or the weak part is arranged on the first buffer part. The weak part is located at a position with a minimum explosive pressure on the explosion-proof valve, and is configured to open the explosion-proof valve when an air pressure in an inner space of the top cover assembly reaches an opening threshold of the explosion-proof valve.

Dependencies are inferred from the claim text.